CentOS 7.9 degradation network

Issues related to hardware problems
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lizzethq
Posts: 1
Joined: 2021/11/25 10:33:56

CentOS 7.9 degradation network

Post by lizzethq » 2021/11/25 10:59:08

HI,

We are experiencing performance degradation related to the network in our environment.
Production Environment
Cloud Provider: Oracle Cloud Infrastructure
CentOS Image:

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[root@oci-bi-msprois-02 ~]# cat /etc/centos-release
CentOS Linux release 7.9.2009 (Core)
Kernel version

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Linux oci-bi-msprois-02 3.10.0-1160.11.1.el7.x86_64 #1 SMP Fri Dec 18 16:34:56 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Driver Network card:

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[root@oci-bi-msprois-02-copy ~]# lspci | grep -i mel
41:00.0 Ethernet controller: Mellanox Technologies MT28800 Family [ConnectX-5 Ex]
41:00.1 Ethernet controller: Mellanox Technologies MT28800 Family [ConnectX-5 Ex]
# lshw -class network -businfo
Bus info          Device     Class          Description
=======================================================
pci@0000:41:00.0  enp65s0f0  network        MT28800 Family [ConnectX-5 Ex]
pci@0000:41:00.1  enp65s0f1  network        MT28800 Family [ConnectX-5 Ex]

# ethtool -i enp65s0f0
driver: mlx5_core
version: 5.0-0
firmware-version: 16.26.1502 (ORC0000000003)
expansion-rom-version:
bus-info: 0000:41:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes
Driver scsci:

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[root@oci-bi-msprois-02 ~]# rpm -qa | grep iscsi-ini
iscsi-initiator-utils-6.2.0.874-21.0.3.el7_9.x86_64
iscsi-initiator-utils-iscsiuio-6.2.0.874-21.0.3.el7_9.x86_64
The performance degradation is from 16GB/s to 2GB/s, Do you know any bugs related to this?

Can you help us?

Lizz

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TrevorH
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Posts: 31328
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: CentOS 7.9 degradation network

Post by TrevorH » 2021/11/25 11:59:39

Start by running yum update to get all the latest updates and see if the problem is already fixed. The current CentOS 7 kernel is 3.10.0-1160.49.1.el7 so your running one is quite out of date.
CentOS 6 died in November 2020 - migrate to a new version!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

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